diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3ff3609ac..2da7bf145 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -195,8 +195,8 @@ ecbuild_add_option( FEATURE INSTALL_ECCODES_SAMPLES
 ecbuild_add_option( FEATURE MEMORY_MANAGEMENT   DESCRIPTION "Enable memory management" DEFAULT OFF ADVANCED )
 ecbuild_add_option( FEATURE ALIGN_MEMORY        DESCRIPTION "Enable memory alignment"  DEFAULT OFF ADVANCED )
 ecbuild_add_option( FEATURE TIMER               DESCRIPTION "Enable timer" DEFAULT OFF ADVANCED )
-ecbuild_add_option( FEATURE ECCODES_THREADS     DESCRIPTION "Enable POSIX threads" DEFAULT OFF ADVANCED )
-ecbuild_add_option( FEATURE ECCODES_OMP_THREADS DESCRIPTION "Enable OpenMP threads" DEFAULT OFF ADVANCED )
+ecbuild_add_option( FEATURE ECCODES_THREADS     DESCRIPTION "Enable thread-safety using POSIX threads" DEFAULT OFF ADVANCED )
+ecbuild_add_option( FEATURE ECCODES_OMP_THREADS DESCRIPTION "Enable thread-safety using OpenMP threads" DEFAULT OFF ADVANCED )
 ecbuild_add_option( FEATURE EXTRA_TESTS         DESCRIPTION "Enable extended regression testing" DEFAULT OFF ADVANCED )
 
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